Heated cathode and method of manufacture,申请号US19640418591-传众专利搜索

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发明名称	Heated cathode and method of manufacture
摘要
申请公布号	US3400294(A)	申请公布日期	1968.09.03
申请号	US19640418591	申请日期	1964.12.07
申请人	GENERAL ELECTRIC COMPANY	发明人	KLING AUGUST J.
分类号	H01J1/20	主分类号	H01J1/20
代理机构		代理人
主权项
地址

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